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-rw-r--r--drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
index 9156e2ea55f5..8c0794af5ade 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c
@@ -161,6 +161,14 @@ bool is_dp2p0_output_encoder(const struct pipe_ctx *pipe_ctx)
if (pipe_ctx->stream == NULL)
return false;
+ /* Count MST hubs once by treating only 1st remote sink in topology as an encoder */
+ if (pipe_ctx->stream->link && pipe_ctx->stream->link->remote_sinks[0]) {
+ return (pipe_ctx->stream_res.hpo_dp_stream_enc &&
+ pipe_ctx->link_res.hpo_dp_link_enc &&
+ dc_is_dp_signal(pipe_ctx->stream->signal) &&
+ (pipe_ctx->stream->link->remote_sinks[0]->sink_id == pipe_ctx->stream->sink->sink_id));
+ }
+
return (pipe_ctx->stream_res.hpo_dp_stream_enc &&
pipe_ctx->link_res.hpo_dp_link_enc &&
dc_is_dp_signal(pipe_ctx->stream->signal));